



COSSONITS. 



55 









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the prothorax longer than broad, the elytra! interstices almost flat, and the leg 

 rufous : it must be yet another species and the name falli is. here suggested for it 



ri^ 



type ( $ ) of C. sulcirostris, Boh., has been communicated by Dr. Sjostedt 



22. Cossonus convexicollis. (Tab. II. figg. 29, 29 a.) 



Cossonus convexicollis, Boh. in Schonh. Gen. Cure. iv. p. 1017 . 



Hal. Mexico (Edge, in coll. Solan), Orizaba 1 (Mas. Holm.), Toxpam, Juquila 



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than C. corticalis (sulcirostris), thus appearing more elongate. The rostrum is less 

 dilated at the apex, not sulcate, and finely punctate. The eyes are depressed. The 

 t„„j i s ra ther small, deeply foveate, and coarsely punctured between the eyes, the 



Guatemala, Zapote (Champi 



* 



numbers at Toxpam and Zapote. This 



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lobose basal portion almost smooth. The prothorax is as long 







unequally punctate, the large, deep, rounded punctures along the middle of the disc 

 being arranged in an irregular row on each side of the smooth cariniform median line ; 

 the disc often has an indeterminate polished, narrow, longitudinal space of variable 



on each side of the shallow median depression, the latter being widened out 





the base. The first ventral segment is dep 



down the middle in the male. The length varies from 4^-6 mm 



- 



- 





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23. Cossonus scrobiculatostriatus. (Tab. II. figg. 30, 30 a.) 





Cossonus scrobiculatostriatus, Boh. in Schonh. Gen. Cure. viii. 1, p. 269 \ 





. 



Eab. Mexico (Mus. Brit.), Toxpam (Salle), Las Vigas, Oaxaca (Edge), Atoy 



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Vera Cruz (E. E. Smith) ; Guatemala, Calderas on the Voican de Fuego (Champion 



Nicaragua, Chontales (Janson) ; Costa Eica, L i Palma (Biolley). — Brazil 1 ; Trin 



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Antilles, St. Vincent Y (E. E. Smith) 



Numerous specimens from the above-quoted localities, including a short series from 

 La Palma, agree perfectly with others found by Mr. H. H. Smith at St. Vincent, which 

 are evidently referable to Boheman's species. They are very like C. corticalis, F. 



/ 7 _ 





stris, Boh.) ; but the rostrum is not sulcate, the prothorax has 



<.„; — g U i ar excavation at the base (usually without, but sometimes with, a short media 



i 





uaiixia), and the elytra are striato-foveolate (the foveiform impressions rounded 

 d not very closely placed), the interstices becoming narrower, sinuous, and su 





P 



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>riorly. The ventral depression of the male is shallow. C. guildingi, Boh., from 

 St. Vincent, to judge from the material before me, is scarcely more than a small, 



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■ 





narrow, less concave form of the subsequently-described C. scrobiculatostriatus. A 



— 





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Costa Rican specimen is figured 







. 



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" 



